Method for rinsing cleaned dishware

Abstract

A method of rinsing cleaned dishware comprising the steps of: (a) cleaning dishware in an automatic dishwasher; and (b) during the rinse cycle of said automatic dishwasher, rinsing said dishware with a rinse aid composition comprising: at least one a graft polymer comprising an acrylic acid backbone and alkoxylated side chains, said polymer comprising a molecular weight of from about 2,000 to about 20,000, said graft polymer comprising from about 20 wt % to about 50 wt % of an alkylene oxide; an acid; a non-ionic surfactant; and optionally at least one component selected from the group consisting of dispersant polymer, perfume, hydrotrope, binder, carrier medium, antibacterial active, dye, zinc carbonate, zinc chloride, and mixtures thereof.

1 . A method of rinsing cleaned dishware comprising the steps of:
 (a) cleaning dishware in an automatic dishwasher; and   (b) during the rinse cycle of said automatic dishwasher, rinsing said dishware with a rinse aid composition comprising:
 i. at least one a graft polymer comprising an acrylic acid backbone and alkoxylated side chains, said polymer comprising a molecular weight of from about 2,000 to about 20,000, and said polymer comprising from about 20 wt % to about 50 wt % of an alkylene oxide; 
 ii. a non-ionic surfactant; 
 iii. optionally an acid; and 
 iv. optionally at least one component selected from the group consisting of dispersant polymer, perfume, hydrotrope, binder, carrier medium, antibacterial active, dye, zinc carbonate, zinc chloride, and mixtures thereof. 
   
     
     
         2 . A method according to  claim 1 , wherein said composition comprises a pH of from about 1 to 6. 
     
     
         3 . A method according to  claim 1 , further comprising an acid. 
     
     
         4 . A method according to  claim 3 , wherein said acid is selected from the group consisting of nitric acid, acetic acid, formic acid, gluconic acid, glutamic acid, malic acid, nitric acid, sulfuric acid, and mixtures thereof, 
     
     
         5 . A method according to  claim 1 , further comprising a particulate zinc-containing material. 
     
     
         6 . A method according to  claim 5 , wherein said particulate zinc-containing material is selected from the group consisting of zinc aluminate, zinc carbonate, zinc oxide and mixtures thereof. 
     
     
         7 . A method according to  claim 1 , wherein said acrylic acid polymer comprises from about 30 wt % to about 45 wt % of an alkylene oxide. 
     
     
         8 . A method according to  claim 1 , wherein said alkylene oxide is selected from ethylene oxide and propylene oxide. 
     
     
         9 . A method according to  claim 1 , wherein said alkoxylated side chains comprise from about 10 to about 55 AO units. 
     
     
         10 . A method according to  claim 1 , wherein said alkoxylated side chains comprise from about 20 to about 50 AO units. 
     
     
         11 . A method according to  claim 1 , further comprising a hydrotrope. 
     
     
         12 . A method according to  claim 1 , further comprising a binder. 
     
     
         13 . A method according to  claim 1 , wherein said dishware comprises one or more pieces of glassware.